relapse (n.)
- about-face
- apostasy
- backing
- backsliding
- cock
- decline
- degenerate
- degeneration
- deterioration
- disenchantment
- fade
- fading
- failing
- failure
- fall
- flip-flop
- lapse
- lapsing
- reaction
- recession
- recidivism
- reclamation
- reentry
- reflux
- regress
- regression
- rehabilitation
- reinstatement
- restitution
- restoration
- retreat
- retroflexion
- retrogression
- retroversion
- return
- reversal
- reverse
- reversion
- reverting
- revulsion
- rollback
- setback
- sink
- sinking
- throwback
- turn
- turnabout
- weakening
- worsening
